Can you become stronger without paying money?

Ma Teng: "Even if I'm starving to death, if I jump from here, I will definitely not put any money into this cheating system!"
System prompt: "Dear player, hello, the newest Thanksgiving Festival special Gacha on the mall, the six-star epic equipment guaranteed to hit the eleventh consecutive guarantee, and the new follower contract, the cute swordsman Lolita is waiting for you to take home~"
Ma Teng: "...Fuck, buy, buy, buy, buy them all!"
I got the krypton gold game system in an ordinary alien fantasy story, what should I do?Waiting online... very urgent!